Reading the report of the High Level Panel induces a sense of giddy optimism. It is a manifesto for a (much) better world, taking the best of the Millennium Development Goals, and adding what we have learned in the intervening years – the importance of social protection, sustainability, ending conflict, tackling the deepest pockets of poverty, even obesity (rapidly rising in many poor countries). It has a big idea (consigning absolute poverty to the history books) and is on occasion brave (in the Sir Humphrey sense) for example in its commitment to women’s rights, including ending child marriage and violence against women, and guaranteeing universal sexual and reproductive health rights.

The ambition and optimism is all the more welcome for its contrast with the daily grind of austerity, recession and international paralysis (Syria, Climate Change, the torments of the European Union). In response, the report is clearly designed for a no/low cost environment, downplaying the importance of aid, talking up access to data, and revenue raisers like cracking down on tax evasion.

But then the doubts start to creep in. What’s missing is always harder to spot than what is in the text, but three gaps are already clear: The emerging global concern over inequality is relegated to national politics, and otherwise dealt with through the ‘data default’ of requiring any target to be met amongst the poorest fifth of a population, not just the population as a whole. The concept of poverty is pretty old school – income, health, education, and fails to recognize the considerable progress made in measuring ‘well-being’ – the level of life satisfaction people feel. Finally there is too little recognition that the earth is a finite ecosystem, and that we need to make a reality of the concept of planetary boundaries if we are to sustain progress in tackling poverty.

But the elephant in the room is not the text, but how this text will or will not connect to the struggles to achieve the many very laudable aims set out in the report.

These reports sank because they failed to connect with more permanent international processes and did not tackle the critical underlying issues of power and politics that determine what good ideas make it into policy, and what are ignored.

Here the HLP report risks going the same way. It is written in the name of an imaginary ‘we’ (as in ‘it is crucial that we ensure basic safety and justice for all’), ignoring the reality that ‘we’ may not all want the same thing (which is why we need politics, after all).

The post2015 process could have lasting influence in four main ways: Firstly, making the case for improving the quality or quantity of aid (the major achievement of the MDGs). The HLP report does pretty well on that, as you would expect.

Second, international agreements can be effective in triggering long-term, under-the-radar changes in public norms and values. This is more subtle, but very important – research is piling up to show that international conventions to end discrimination against women, or on the rights of children, have permeated people’s heads (and national laws) in many countries, changing in fundamental ways, perceptions of what it is to be a woman or a child. It is very unlikely indeed that this report will have that effect, but it’s still possible if there is sufficient pressure.

That brings us to a third pathway to impact: directly exerting traction on national governments. Will the post2015 process persuade national governments to do things differently, for example by creating a ‘race to the top’ between governments, highlighting the heroes and zeroes (like the World Bank’s Doing Business rankings). Promisingly, the report urges regional reports and peer reviews – nothing annoys a leader (or wins press coverage) like being trounced by a neighbour in a league table.

Finally, the post2015 process could create stronger and broader alliances of civil society organizations, trade unions, faith institutions and others who take whatever comes out of the process and use it to put pressure on their governments, as they have done with some of the ILO conventions, or the Universal Declaration of Human Rights.

The report now enters the treacherous waters of a ‘UN Open Working Group’. With two and a half years before the MDGs deadline, the task of those concerned with development should now be to defend the good stuff in the HLP report from dilution, while focussing far more strongly on how a new set of global goals can lead to lasting change at national level.